Hello
I have a 1998 75hp Merc. 2 stroke tiller on a 18ft Alumacraft I just purchased. Having motor troubles on the maiden voyage:facepalm: It starts fine and sometimes idles rough and other times idles fine, but when throttle is applied she seems to drop a cylinder fairly quick and after about 1 minute at 3/4 or more throttle she drops a 2nd cylinder and im running on One (it is a 3 cylinder motor). It will then continue to jump back and forth between one and 2 cylinders but the 3rd cylinder will not fire at all over 1/3 throttle. I replaced the plugs and ran some sea foam through the tank which seemed to help for about 1 minute at idle speeds but as soon as I put it in gear and gave it some gas the problem proceeded to continue right away. Any help will be greatly appreciated. Cant seem to figure out if this would be a fuel or electrical issue. Thanks.
I have a 1998 75hp Merc. 2 stroke tiller on a 18ft Alumacraft I just purchased. Having motor troubles on the maiden voyage:facepalm: It starts fine and sometimes idles rough and other times idles fine, but when throttle is applied she seems to drop a cylinder fairly quick and after about 1 minute at 3/4 or more throttle she drops a 2nd cylinder and im running on One (it is a 3 cylinder motor). It will then continue to jump back and forth between one and 2 cylinders but the 3rd cylinder will not fire at all over 1/3 throttle. I replaced the plugs and ran some sea foam through the tank which seemed to help for about 1 minute at idle speeds but as soon as I put it in gear and gave it some gas the problem proceeded to continue right away. Any help will be greatly appreciated. Cant seem to figure out if this would be a fuel or electrical issue. Thanks.
